Relay SendGrid Inbound Parse Webhook to Discord
| Key | Description |
|---|---|
| WEBHOOK_DISCORD | Discord Webhook URL |
Last active
July 4, 2020 06:50
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Google Cloud Functions で SendGridの Inbound Parse Webhook を受けて Discordに投げる
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| const fetch = require('node-fetch'); | |
| const htmlToText = require('html-to-text'); | |
| const Busboy = require('busboy'); | |
| // const inspect = require('util').inspect; | |
| const webhookUrl = process.env.WEBHOOK_DISCORD; | |
| function create_message(fields){ | |
| message = "From: "+ fields.from + "\n" | |
| + "To: "+ fields.to + "\n" | |
| + "Subject: "+ fields.subject + "\n" | |
| + "Body: "+ (fields.text || htmlToText.fromString(fields.html)) + "\n"; | |
| return message | |
| } | |
| async function send_message(fields){ | |
| const url = webhookUrl; | |
| const body = { | |
| content: create_message(fields) | |
| }; | |
| const options = { | |
| method: 'POST', | |
| body: JSON.stringify(body), | |
| headers: { 'Content-Type': 'application/json' }, | |
| }; | |
| return await fetch(url, options); | |
| } | |
| /** | |
| * HTTP Cloud Function that makes an HTTP request | |
| * | |
| * @param {Object} req Cloud Function request context. | |
| * @param {Object} res Cloud Function response context. | |
| */ | |
| exports.makeRequest = async (req, res) => { | |
| if (req.method != 'POST') return res.sendStatus(405); // method not allowed | |
| // console.log("Mail coming"); | |
| var fields = {}; | |
| var busboy = new Busboy({ headers: req.headers }); | |
| busboy.on('field', function(fieldname, val, fieldnameTruncated, valTruncated, encoding, mimetype) { | |
| // console.log('Field [' + fieldname + ']: value: ' + inspect(val)); | |
| fields[fieldname] = val; | |
| }); | |
| busboy.on('file', function(fieldname, file, filename, encoding, mimetype) { | |
| // console.log('File [' + fieldname + ']: filename: ' + filename + ', encoding: ' + encoding + ', mimetype: ' + mimetype); | |
| file.on('data', function(data) { | |
| // console.log('File [' + fieldname + '] got ' + data.length + ' bytes'); | |
| }); | |
| file.on('end', function() { | |
| // console.log('File [' + fieldname + '] Finished'); | |
| }); | |
| }); | |
| busboy.on('finish', async () => { | |
| // console.log('Done parsing form!'); | |
| const externalRes = await send_message(fields); | |
| res.sendStatus(externalRes.ok ? 200 : 500); | |
| }); | |
| busboy.end(req.rawBody); | |
| }; |
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| { | |
| "name": "sendgrid-discode", | |
| "version": "1.0.0", | |
| "description": "", | |
| "main": "index.js", | |
| "scripts": { | |
| "start": "npx @google-cloud/functions-framework --target=makeRequest" | |
| }, | |
| "author": "[email protected]", | |
| "license": "MIT", | |
| "dependencies": { | |
| "busboy": "^0.3.1", | |
| "html-to-text": "^5.1.1", | |
| "node-fetch": "^2.6.0" | |
| }, | |
| "devDependencies": { | |
| "@google-cloud/functions-framework": "^1.6.0" | |
| } | |
| } |
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